PSYCH 101 Chapter Notes - Chapter Sensation and Perception: Retinal Ganglion Cell, Visual Cortex, Binocular Disparity
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PSYCH 101 Full Course Notes
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Psych 101 jan 25 reading sensation and perception. Sensation: the physical process during which our sensory organs respond to external stimuli: sense organs engage in transduction: the conversion of one form of energy into another. Perception: the physiological process making sense of the stimuli. Absolute threshold: minimum amount of stimulation in order to detect a stimulus: we can measure absolute thresholds by using signal detection. Process involves presenting stimuli of varying intensities to a research participant in order to determine the level at which he or she can reliably detect stimulation in a given sense. Differential threshold / just noticeable difference (jnc: the change necessary to be detectable, we(cid:271)er"s la(cid:449) Bigger stimuli require larger differences to be noticed. Building up to perception from individual pieces: top-down processing. Sti(cid:373)uli (cid:449)e"(cid:448)e experie(cid:374)(cid:272)ed i(cid:374) the past (cid:449)ill i(cid:374)flue(cid:374)(cid:272)e ho(cid:449) (cid:449)e pro(cid:272)ess (cid:374)e(cid:449) o(cid:374)es: sensory adaptation. When a stimulus is constant and unchanging, we experience sensory adaptation. We become less sensitive to this stimulus.
